YOU SAID:

i feel like you're dumb

INTO JAPANESE

私はあなたが馬鹿だと感じています

BACK INTO ENGLISH

I feel you are idiot

INTO JAPANESE

あなたはばかだと思う

BACK INTO ENGLISH

I think you are a fool

INTO JAPANESE

あなたはばかだと思う

BACK INTO ENGLISH

I think you are a fool